Question

Why are hydrogen ions and hydroxide ions omitted from the net reaction for the hydrolysis of water?

Answer 1

The two ions tend to recombine to form liquid water

Answer 2

Hydrolysis is the breaking down of bonds when water is involved in the reaction. The net reaction for the hydrolysis of water yields hydrogen ions and hydroxide ions because these ions are dissociated upon solvolysis. This means they are completely dissolved and transformed into ions thereafter.